Home / 25,312.11-34,929.18-15,243.81

Finding the Fourth Proportional to 25,312.11, 34,929.18 and 15,243.81

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Solution

The fourth proportional to 25,312.11, 34,929.18 and 15,243.81 is: 21,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,312.11 : 34,929.18 = 15,243.81 : x
  2. Step 2: Convert to fraction form
    25,312.11/34,929.18 = 15,243.81/x
  3. Step 3: Cross multiply
    25,312.11x = 34,929.18 × 15,243.81
  4. Step 4: Simplify right side
    25,312.11x = 532,453,783.38
  5. Step 5: Solve for x
    x = 532,453,783.38/25,312.11
  6. Step 6: Final answer
    x = 21,035.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.